Dual Monitor - Resolução no segundo monitor não passa de 640x480

[Lesdaty <lesdaty@gmail.com>]

Ola pessoal, estou com um probleminha, instalei dois monitores com placas de video diferentes,
mas a resolução do segundo monitor não passa de 640x480.

Eis meu xorg.conf

Section "Files"

        # path to defoma fonts
        FontPath     "/usr/share/fonts/X11/misc"
        FontPath     "/usr/X11R6/lib/X11/fonts/misc"
        FontPath     "/usr/share/fonts/X11/cyrillic"
        FontPath     "/usr/X11R6/lib/X11/fonts/cyrillic"
        FontPath     "/usr/share/fonts/X11/100dpi/:unscaled"
        FontPath     "/usr/X11R6/lib/X11/fonts/100dpi/:unscaled"
        FontPath     "/usr/share/fonts/X11/75dpi/:unscaled"
        FontPath     "/usr/X11R6/lib/X11/fonts/75dpi/:unscaled"
        FontPath     "/usr/share/fonts/X11/Type1"
        FontPath     "/usr/X11R6/lib/X11/fonts/Type1"
        FontPath     "/usr/share/fonts/X11/100dpi"
        FontPath     "/usr/X11R6/lib/X11/fonts/100dpi"
        FontPath     "/usr/share/fonts/X11/75dpi"
        FontPath     "/usr/X11R6/lib/X11/fonts/75dpi"
        FontPath     "/var/lib/defoma/x-
ttcidfont-conf.d/dirs/TrueType"
EndSection

Section "Module"
        Load  "i2c"
        Load  "bitmap"
        Load  "ddc"
        Load  "GLcore"
        Load  "dri"
        Load  "extmod"
        Load  "freetype"
        Load  "glx"
        Load  "int10"
        Load  "type1"
        Load  "vbe"
EndSection

Section "InputDevice"
        Identifier  "Generic Keyboard"
        Driver      "kbd"
        Option      "CoreKeyboard"
        Option      "XkbRules" "xorg"
        Option      "XkbModel" "abnt2"
        Option      "XkbLayout" "br"
        Option      "XkbVariant" "abnt2"
EndSection

Section "InputDevice"
        Identifier  "Configured Mouse"
        Driver      "mouse"
        Option      "CorePointer"
        Option      "Device" "/dev/input/mice"
        Option      "Protocol" "ImPS/2"
        Option      "Emulate3Buttons" "true"
EndSection

Section "Monitor"
        Identifier   "aticonfig-Monitor[0]"
        Option      "VendorName" "ATI Proprietary Driver"
        Option      "ModelName" "Generic Autodetecting Monitor"
        Option      "DPMS" "true"
EndSection

Section "Monitor"
        Identifier  "Compaq"
        Option      "DPMS"
        HorizSync    31.0-50.0
        VertRefresh  50.0-60.0
#       DisplaySize 320 240
EndSection

Section "Device"
        Identifier  "aticonfig-Device[0]"
        Driver      "radeon"
        BusID       "PCI:1:0:0"
EndSection

Section "Device"
        Identifier "8mb"
        Driver "ati"
        BusID "PCI:2:07:0"
EndSection

Section "Screen"
        Identifier "aticonfig-Screen[0]"
        Device     "aticonfig-Device[0]"
        Monitor    "aticonfig-Monitor[0]"
        DefaultColorDepth 24
        SubSection "Display"
                Depth     24
                Modes    "1152x864" "1024x768" "832x624" "800x600" "720x400" "640x480"
        EndSubSection
EndSection

Section "Screen"
        Identifier "aticonfig-Screen[1]"
        Device     "8mb"
        Monitor    "Compaq"
        DefaultColorDepth 24
        SubSection "Display"
                Depth     24
                Modes    "1024x768"
        EndSubSection
EndSection

Section "ServerLayout"
        Identifier     "Default Layout"
        Screen 0       "aticonfig-Screen[0]" 0 0
        Screen 1       "aticonfig-Screen[1]" RightOf "aticonfig-Screen[0]"
        InputDevice    "Generic Keyboard"
        InputDevice    "Configured Mouse"
EndSection

Section "ServerFlags"
        Option "Xinerama" "true"
EndSection

Section "DRI"
        Mode    0666
EndSection


lspci - as placas de video

01:00.0 VGA compatible controller: ATI Technologies Inc RV280 [Radeon 9200 PRO] (rev 01)
01:00.1 Display controller: ATI Technologies Inc RV280 [Radeon 9200 PRO] (Secondary) (rev 01)
02:07.0 VGA compatible controller: ATI Technologies Inc 3D Rage LT-G 215LG (rev 80)




-- 
Lesdaty